Self-adaptive clamping device and machine tool

Abstract

The utility model discloses a self-adaptive clamping device and a machine tool. The self-adaptive clamping device comprises a self-adaptive clamping assembly and a synchronous driving assembly. The self-adaptive clamping assembly is provided with n movable clamping jaws, a first movable swing rod, a second movable swing rod and a movable rotating shaft. The two ends of the first movable swing rod and the two ends of the second movable swing rod are each provided with a first movable sliding groove. The clamping mechanism has the beneficial effects that the movable swing rod I or the movable swing rod II adapted to the clamping assembly is matched with the movable rotating shaft and the movable sliding chute I of the movable swing rod I or the movable swing rod II so as to realize connection and linkage of the movable clamping jaws adapted to the clamping assembly; the synchronous driving assembly is used for dragging the n driving clamping jaws to synchronously move at the constant speed through one input power, the movement is transmitted to a first movable swing rod or a second movable swing rod on the driving clamping jaws through a pushing rotating shaft to move together, the synchronous driving assembly can clamp and adapt to the technical scheme of different shapes of clamped objects, the cost is greatly reduced, the size is small, and operation is convenient. The structure is simple and service life is long.

Description

Technical Field

[0001] The utility model relates to the field of clamping devices, in particular to an adaptive clamping device and a machine tool. Background Art

[0002] In the part clamping operation, the shape of the part is often not a square or circular cross-section, such as a rectangular or elliptical cross-section. This requires the clamping jaws to adapt to the shape of the part and have self-centering, that is, to achieve adaptive clamping. In existing clamping devices, the clamping jaws are mostly powered by one power to achieve synchronous and uniform movement of the clamping jaws, or multiple powers are used to achieve clamping of rectangular or circular cross-section parts. It is impossible to achieve adaptive clamping according to the shape of the part with one power. This results in high cost, low reliability and large size of the clamping device for rectangular or irregular parts.

[0003] Therefore, the inventor has proposed a technical solution of an adaptive clamping device after intensive research. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the utility model discloses an adaptive clamping device, including: an adaptive clamping component, a synchronous driving component;

[0005] The adaptive clamping assembly is provided with n movable jaws, and a movable swing rod 1 or a movable swing rod 2 is provided between two adjacent movable jaws, and a driving shaft connected to the movable swing rod 1 or the movable swing rod 2 is provided in the middle position of each movable swing rod 1 or the movable swing rod 2, and a movable shaft is fixed on each of the n movable jaws, and movable slide grooves 1 are provided at both ends of the movable swing rod 1 and the movable swing rod 2, and each movable shaft can be movably arranged in the movable slide grooves 1 at one end of each of the two adjacent movable swing rods, and connect the adjacent movable swing rods 1 or the movable swing rods 2, and then connect the n movable jaws;

[0006] The synchronous drive assembly is provided with a clamping disk body and n driving jaws that move synchronously and at a constant speed. The clamping disk body is provided with n first slide grooves and n second slide grooves. The first slide grooves and the second slide grooves are arranged in sequence and at intervals. The n movable jaws are arranged in the n first slide grooves in sequence, and the n driving jaws are arranged in the n second slide grooves in sequence. Each of the pushing shafts is fixed on the driving jaws, and the n driving jaws that move synchronously and at a constant speed are used to drive the pushing shafts fixedly connected thereto, thereby driving the movable swing rod 1 or the movable swing rod 2 that is swingably connected to the pushing shaft to move synchronously and at a constant speed. The movable jaws on the adjacent two sides are pushed to move through the movable slide grooves 1 at both ends. When the speed of one of the two adjacent movable jaws is zero when encountering an obstruction when clamping the object, the movable swing rod 1 or the movable swing rod 2 swings relative to the driving jaw, so that the other movable jaw of the two adjacent movable jaws can continue to move until it encounters an obstruction when clamping the object, that is, the movement of n movable jaws can clamp irregular objects at the same time, and the n movable jaws are connected by the movable slide grooves of the movable swing rod, so that the distances between the spaced movable jaws and the moving center points of the driving jaws are equal, thereby realizing self-centering clamping of the n movable jaws, and n is an integer greater than or equal to 4.

[0007] Among them, the synchronous drive component includes a spiral drive plate, a spiral groove is arranged on the spiral drive plate, and tooth grooves are arranged at the bottom of the n driving jaws, and they cooperate with the spiral grooves for transmission. The spiral drive plate is arranged below the clamping disk body and the n driving jaws and is rotatably connected to the clamping disk body. The spiral drive plate simultaneously drives the n driving jaws that cooperate with it to move synchronously and at a constant speed through the spiral groove.

[0008] Among them, the synchronous drive component includes a second clamping disk body, n rack-type driving jaws, a driving toothed disk, and n driving pinions. The n driving pinions are rotatably connected to the second clamping disk body, and the n driving pinions are all meshed with the driving toothed disk for transmission. The sides of the n rack-type driving jaws are provided with transmission teeth, and the n driving pinions are respectively meshed with the n rack-type driving jaws for transmission. The driving toothed disk is rotatably connected to the second clamping disk body, and the driving toothed disk drives the n rack-type driving jaws to move synchronously and at a constant speed simultaneously through the n driving pinions.

[0009] Among them, the movable swing arm 1 and the movable swing arm 2 are arc-shaped in appearance, and the movable slide groove 1 is an arc slide groove.

[0010] Among them, the movable swing arm is provided with a first extended protrusion in the middle, and a first hollow boss is provided at the end of the first protrusion. The driving shaft is swingably provided in the first hollow boss.

[0011] A machine tool comprises a machine body and the above-mentioned adaptive clamping device.

[0012] The utility model adopts an active rocker arm 1 or an active rocker arm 2 of an adaptive clamping assembly in cooperation with an active rotating shaft and its own active sliding groove to realize the connection and linkage of the active clamping jaws of the adaptive clamping assembly, and the synchronous driving assembly is used to realize that an input power drags n driving clamping jaws to move synchronously and at a constant speed together, and transmits this movement to the active rocker arm 1 or the active rocker arm 2 on the driving clamping jaws by pushing the rotating shaft to move together, so that the n active clamping jaws of the adaptive clamping device can clamp and be suitable for different shapes of clamped objects, which greatly reduces the cost, has a small size, a simple structure and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a perspective view of an embodiment.

[0015] Figure 2 An exploded view of an embodiment.

[0016] Figure 3 An exploded view of an adapted clamping assembly according to an embodiment.

[0017] Figure 4 2 is an exploded view of the synchronous drive assembly 02 of the embodiment.

[0018] Figure 5 It is a three-dimensional diagram of another synchronous drive component 03 of the embodiment.

[0019] Figure 6 It is an exploded view of another synchronous drive component 03 of the embodiment. DETAILED DESCRIPTION

[0020] The following is a detailed description of the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer definition of the protection scope of the present invention. The accompanying drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and the advantages of the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Example

[0025] Refer to the attached Figure 1-6 , an adaptive clamping device, comprising: an adaptive clamping component 01, a synchronous driving component 02;

[0026] The adaptable clamping assembly 01 is provided with n movable jaws 1001, and a movable swing rod 1 1002 or a movable swing rod 2 1003 is provided between two adjacent movable jaws, and a driving shaft 1004 is provided in the middle position of each movable swing rod 1 1002 or movable swing rod 2 1003 so as to be swingably connected thereto, and a movable shaft 1005 is fixed on each of the n movable jaws 1001, and movable slide grooves 1 C001 are provided at both ends of the movable swing rod 1 1002 and the movable swing rod 2 1003, and each movable shaft 1005 can be movably arranged in the movable slide grooves 1 C001 at one end of each of the two adjacent movable swing rods, and connect the adjacent movable swing rods 1 1002 or movable swing rods 2 1003, and further connect the n movable jaws 1001;

[0027] The synchronous drive assembly 02 is provided with a clamping plate main body 2001 and n driving jaws 2002 that move synchronously and at a constant speed. The clamping plate main body 2001 is provided with n first slide grooves D001 and k second slide grooves D002. The first slide grooves D001 and the second slide grooves D002 are arranged in sequence and at intervals. The n movable jaws 1001 are arranged in the n first slide grooves D001 in sequence, and the n driving jaws 2002 are arranged in the n second slide grooves D002 in sequence. Each driving shaft 1004 is fixed on the driving jaw 2002, respectively. The n driving jaws 2002 that move synchronously and at a constant speed are used to drive the driving shaft 1004 fixedly connected thereto, thereby pushing the movable swing rod 1 1002 or the movable swing rod 2 1003 that is swingably connected to the driving shaft 1004 to move synchronously and at a constant speed. The movable slide grooves C001 at both ends push the movable jaws 1001 on the adjacent sides to move. When the speed of one of the two adjacent movable jaws 1001 is zero when encountering an obstruction to the clamped object, the movable swing rod 1 1002 or the movable swing rod 2 1003 swings relative to the driving jaw 2002, so that the other movable jaw 1001 of the two adjacent movable jaws 1001 can continue to move until it encounters an obstruction to the clamped object, that is, the movement of n movable jaws 1001 can clamp irregular objects at the same time, and the n movable jaws 1001 are connected by movable slide grooves of movable swing rods, so that the distances between the spaced movable jaws 1001 and the moving center points of the driving jaw 2002 are equal, thereby realizing self-centering clamping of the n movable jaws 1001, and n is an integer greater than or equal to 4.

[0028] Among them, the synchronous drive component 02 includes a spiral drive plate 2003 of the clamping disk main body, a spiral groove L001 is arranged on the spiral drive plate 2003, and a tooth groove C002 is arranged at the bottom of the n driving jaws 2002, and cooperates with the spiral groove L001 for transmission. The spiral drive plate 2003 is arranged below the clamping disk main body 2001 and the n driving jaws 2002 and is rotatably connected to the clamping disk main body 2001. The spiral drive plate 2003 simultaneously drives the n driving jaws 2002 cooperating with it to move synchronously and at a constant speed through the spiral groove L001.

[0029] Among them, the synchronous drive component 03 includes two clamping disk main bodies 3001, n rack-type driving jaws 3002, a driving toothed disk 3003, and n driving pinions 3004. The n driving pinions 3004 are rotatably connected to the second clamping disk main body 3001, and the n driving pinions 3004 are all engaged with the driving toothed disk 3003 for transmission. The sides of the n rack-type driving jaws 3002 are provided with transmission teeth, and the n driving pinions 3004 are respectively engaged with the n rack-type driving jaws 3002 for transmission. The driving toothed disk 3003 is rotatably connected to the second clamping disk main body 3001, and the driving toothed disk 3003 drives the n rack-type driving jaws 3002 to move synchronously and at a constant speed simultaneously through the n driving pinions 3004.

[0030] Among them, the movable swing rod 1 1002 and the movable swing rod 2 1003 have arc shapes, and the movable slide groove 1 C001 is an arc slide groove.

[0031] The movable swing arm 1002 is provided with an extended first protrusion T001 in the middle, and a first hollow boss T002 is provided at the end of the first protrusion T001. The driving shaft 1004 is swingably provided in the first hollow boss T002.

[0032] A machine tool comprises a machine body and the above-mentioned adaptive clamping device.

[0033] Working principle: The movable rocker arm 1 or the movable rocker arm 2 of the adaptive clamping component cooperates with the movable rotating shaft and its own movable slide groove to realize the connection and linkage of the movable jaws of the adaptive clamping component. The synchronous drive component is used to realize an input power to drag n driving jaws to move synchronously and at a constant speed, and transmit this movement to the movable rocker arm 1 or the movable rocker arm 2 on the driving jaws by pushing the rotating shaft to move together, so that the n movable jaws of the adaptive clamping device can clamp and adapt to different clamping object shapes. The technical solution greatly reduces the cost, has a small size, a simple structure and a long service life.

[0034] The above embodiments and drawings can be extended to other technical fields. The above embodiments and drawings do not limit the product form and style of the utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the utility model.

Claims

1. An adaptive clamping device, characterized in that: include: Adapt to clamping components and synchronous drive components; The adaptive clamping assembly is provided with n movable clamping jaws, and a movable swing rod 1 or a movable swing rod 2 is provided between two adjacent movable clamping jaws, and a driving shaft connected to the movable swing rod 1 or the movable swing rod 2 is provided in the middle position of each movable swing rod 1 or the movable swing rod 2, and a movable shaft is fixed on each of the n movable clamping jaws, and movable slide groove 1 is provided at both ends of the movable swing rod 1 and the movable swing rod 2, and each movable shaft can be movably arranged in the movable slide groove 1 at one end of each of the two adjacent movable swing rods, and the adjacent movable swing rods 1 or the movable swing rods 2 are connected, thereby connecting the n movable clamping jaws; The synchronous drive assembly is provided with a clamping disk body and n driving jaws that move synchronously and at a constant speed. The clamping disk body is provided with n first slide grooves and n second slide grooves. The first slide grooves and the second slide grooves are arranged in sequence and at intervals. The n movable jaws are arranged in the n first slide grooves in sequence, and the n driving jaws are arranged in the n second slide grooves in sequence. Each of the pushing shafts is fixed on the driving jaws, and the n driving jaws that move synchronously and at a constant speed are used to drive the pushing shafts fixedly connected thereto, thereby driving the movable swing rod 1 or the movable swing rod 2 that is swingably connected to the pushing shaft to move synchronously and at a constant speed. The movable jaws on the adjacent two sides are pushed to move through the movable slide grooves 1 at both ends. When the speed of one of the two adjacent movable jaws is zero when encountering an obstruction when clamping the object, the movable swing rod 1 or the movable swing rod 2 swings relative to the driving jaw, so that the other movable jaw of the two adjacent movable jaws can continue to move until it encounters an obstruction when clamping the object, that is, the movement of n movable jaws can clamp irregular objects at the same time, and the n movable jaws are connected by the movable slide grooves of the movable swing rod, so that the distances between the spaced movable jaws and the moving center points of the driving jaws are equal, thereby realizing self-centering clamping of the n movable jaws, and n is an integer greater than or equal to 4.

2. The adaptive clamping device according to claim 1, characterized in that: The synchronous drive assembly includes a spiral drive plate, a spiral groove is provided on the spiral drive plate, and tooth grooves are provided at the bottom of the n driving jaws, and the spiral drive plate is arranged below the clamping disk body and the n driving jaws and is rotatably connected to the clamping disk body. The spiral drive plate simultaneously drives the n driving jaws that cooperate with it to move synchronously and at a constant speed through the spiral groove.

3. The adaptive clamping device according to claim 1, characterized in that: The synchronous drive assembly includes a second clamping disk body, n rack-type driving jaws, a driving toothed disk, and n driving pinions. The n driving pinions are rotatably connected to the second clamping disk body, and the n driving pinions are all meshed with the driving toothed disk for transmission. The sides of the n rack-type driving jaws are provided with transmission teeth, and the n driving pinions are respectively meshed with the n rack-type driving jaws for transmission. The driving toothed disk is rotatably connected to the second clamping disk body, and the driving toothed disk drives the n rack-type driving jaws to move synchronously and at a constant speed simultaneously through the n driving pinions.

4. The adaptive clamping device according to claim 1, characterized in that: The movable swing rod 1 and the movable swing rod 2 are arc-shaped in appearance, and the movable slide groove 1 is an arc slide groove.

5. The adaptive clamping device according to claim 1, characterized in that: The movable swing arm is provided with a first protrusion extending outward in the middle, a first hollow boss is provided at the end of the first protrusion, and the driving shaft is swingably provided in the first hollow boss.

6. A machine tool, characterized in that: An adaptive clamping device comprising a fuselage body and any one of the above items.

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